Ageless funnywoman Betty White was treated to more howls than a sitcom laugh track yesterday, as a star-studded array of entertainers saluted the Golden Girl at a Midtown celebrity roast.

The 90-year-old White, whose showbiz career spans seven decades, still knows how to make an entrance.

The “Hot in Cleveland” star kicked off the famed Friars Club roast by riding into the Sheraton Hotel ballroom sidesaddle on a white pony flanked by two shirtless, oiled-up hunks in cowboy gear.

Once seated at the dais, White — who calls herself the “luckiest old broad on two feet” — was comically eviscerated by bawdy jokesters including Joy Behar, Larry King, Lisa Lampanelli and even Matt Lauer.

“Betty’s not the first woman to be roasted by the Friars, but there have been so many firsts [for her],” said roast host Barbara Walters. “Betty was the first woman to do Shakespeare at the Globe Theatre. I mean literally. She did him in the balcony.”

The roast quickly turned into one long-running old joke, with star after star riffing on White’s age.

“Betty’s so old, her first show was called ‘Hot for Grover Cleveland,’ ” Behar said.

“I really deeply had a good time, and I didn’t expect to,” White said.